Product Engineer - AuthKit

About the Role

The AuthKit team builds WorkOS's customizable authentication UI, powered by Radix (from WorkOS's acquisition of Modulz). AuthKit enables B2B developers to solve identity and authentication with a single integration command (npx workos@latest). You will build the best possible developer and end-user experiences across social auth, passwordless (Magic Auth), MFA, SSO, and passkeys so customers can onboard seamlessly and kick-start their enterprise journey.

What You'll Do

• Design and engineer delightful developer and end-user experiences for authentication flows
• Build UI components and APIs that handle social login, passwordless auth, MFA, and SSO
• Develop framework-specific integrations and the AuthKit CLI/AI installer
• Improve the AuthKit hosted experience (authkit.com) and embeddable components
• Collaborate with a small, high-agency team to ship rapidly
• Work closely with the Developer Experience team to ensure best-in-class DX

What We Look For

• 5+ years of industry software development experience
• Strong frontend engineering skills with TypeScript and React
• Experience with component libraries or design systems (Radix experience is a plus)
• Deep understanding of authentication flows (OAuth, SAML, OIDC, passkeys)
• Strong product sensibility and design intuition for developer-facing UIs
• Experience with Postgres and Node.js
• Experience in B2B SaaS or developer tools is a plus

About WorkOS

WorkOS provides the developer infrastructure behind modern enterprise-ready software. Their APIs power authentication, SSO, directory sync, and more for companies like OpenAI, Vercel, Cursor, Perplexity, and Webflow. The team is 100+ builders, remote-first across USA time zones. WorkOS raised $80M in Series B funding (led by Greenoaks, with Lightspeed Ventures and notable angels including Guillermo Rauch). Founded in 2020, they reached 200+ paying customers within two years.

Tech Stack

TypeScript, React, Radix UI, Node.js, Postgres, REST APIs with SDKs in Node.js, Ruby, Python, Go, PHP, Java, and .NET.

Benefits

• Medical, dental, and vision insurance
• 401k with 3% employer match
• 20 days paid vacation
• 12 weeks parental leave
• Monthly fitness and wellness stipends
• Home office stipend

Work Style

Remote-first, USA time zones.